Mold for concrete construction.



M. H. MOONEY.

MOLD FOR CONCRETE CONSTRUCTION. 7

APPLICATION FILED SEPT 5, 19 11.

Patented Dec. 29, 1914.

4 SHEETSSHEET 1.

MOONEY. MOLD FOR CONCRETE CONSTRUCTION.

Patented Dec.29,1914

4 SHEETS-SHEET 2.

74/647002 A4 .zlloon e W W ABPLIOATIOH FILED SEPT. 5, 1911.

, .QK. l4

M. H. MOONEY. MOLD- FOR OONORETE CONSTRUCTION.

APPLICATION FILED SEPT. 5, 1911. a

4HEETSSHEET 3.

Patented Dec. 29,

7 9 hwy 1341.. H. MOONEY.- MOLD FOR-GONGRETE CONSTRUCTION. APPQIOAILQH IIILBD SEPT. 5, 1911.

Patented Dec. 29, 1914-.

4 SHEETS-SHEET 4.

awwwbo'a /f/a-7w)z' 6(111007257 I Qua n1 UNITED STATES PATENT OFFICE.

1 nan-rm HpMOONEY, or TRENTomMIssoURI.

Be it knownthat 1,;MARY1N H. MOONEY, a citizen o fi'the United States, residing at Trentonfin' the county of Grimdy and State of Missouri, liaveinvented new and useful Improvements inMolds for Concrete Constructioinof which the following is a specification.

This invention relates to certain novel and usefulimprovements in molds for making culverts, sewers, and other similar constructions, w-l'iich are'formed of concrete or cement, or like material. I

In carrying out my invention, it my purpose 'to provide animproved former or, mold, WlllOh is composed of a series of independent sections or walls, capable of being adjusted to form aculvert or conduit of the desired dimensions, means being "provided whereby said wallsmay be readily, quickly and positively adjusted in assembling or dismantling. the former:

Still a further object of my inventionis to provide amold or former of thetype referred to, which will'embody the desired features of strength and durability, coupled with economy of cost of productiomand installation. =H

Furthermore, I aim to provide a former whereby-the sections composing the walls may be uncoupled or separated and the op-; erating mechanism also separated from the section's forming the mold body, so that the labor of-handling'the apparatus in transportation, and in assembling .andvdismantling the same is reduced.

Ijalso aim to. provide a structure which will contain but relatively few: rivets tobe exposed to the elements, or to the concrete or cement, and therebyI avoid the objection incident to those types of molds, which contain numerous rivets or similar fasteningsthat are continuously becoming loose or pulling out. Y

WVith'the "above-recited objects and others of asimilar-nature in'view, the invention .consists of the construction, ,coinbination and arrangement of parts, set forth in and falling within the scope of the appended claims;

In' the accompanying drawings :Figure l is a perspective of'a portion of a mold em- 'bodying my invention,,'a'nd showing a culvert or-conduit in the course of ,construc tion- Fig.2li's a longitudinal sectipnal view .tgk -throughh'ai section of the mold, and

' Specification of Letters Patent.

, .lviofLn ron' cononn rn coNs'rR-Uc'rroN.

tended position. Fig. '3 is a similar view, showing the mechanism in collapsed position. Fig. & is a cross sectional view.v Fig. 5 is an end view, showing thesheets or. sections forming the core or inner shell, prior to bending the same into circular formation. Fig. 6 1s a perspective view of one of the sections or inner sheets of the core. Fig. 7 is an end view of the releaser sheets. Fig. 8 is a side View of one of the same. Fig. 9

Patented Dec. 29, 1 914, Applicationfiledseptemberfi,1911. Seria1No.647,'498. 7 I I showing .ther iexpanding mechanism in exa is an enlarged sectional view through the i ring showing the connections of the pull and push rods.

In the present instance, in carrying. out the invention, I employ an inner shell or coreformedof a series of sheets or sections each having side flanges bent downwardly at an angle to themain body of the sheet, said side flanges being attached to devices adapted to be actuated to bend or bow the individual sheets into sector-like form. Surrounding this inner shell or core, but spaced apart therefrom, the desired distance is an outer casing also formed of a series of metallic sheets which are assembled, and bent to form a cylinder or to otherwise conform to the shape of the inner core. This outer casing is also formed with side flanges, and I further provide spacing levers or rods connected to the devices for expanding the core. The core or inner shell is furthermore formed with two sections connected to releasing. mechanism, whereby these releasing sections may be moved to permit the contraction or collapsing of, the core.

Referring now to the accompanying drawings in detail, the letter A designates the core or inner casing as an entirety, the letter B indicating the outer casing. while the letter C indicatesthe expanding or operath ing'mechamsm, as a whole. The inner casis provided with a left hand screw thread 5,

the shaft being rotatable through means of a crank handle 6. Threaded upon the shaft are the hubs 7-7, each hub comprising two sections, a casting 8 and a ring section 9. The casting 8 is formed with a series of slots or recesse 10, into which is designed to rest the ends of the levers 11, the said lever ends being secured through the medium of a welded ring 12, which passes through bores -in the ends of the lever and rests within the rabbet 13 formed within the hub. is will be seen by the drawings, these levers 11- cxtend radially from the hubs and form parts of the lazy tong construction. Loosely mounted upon the shaft are the companion hubs 1-1-1-l each of similar construction to the hubs 7, so that the shaft 3 carries four hubs all of like construction.

Extending from the hubs 11 and secured in the manner of the levers 11, are the levers 15 pivoted as at 16.to the levers 11, the ends of said levers 11 and 15 having pivoted thereto as at 17 and 18 theshort links 19 and 20, which in turn are pivoted as at 21 to the short links 22 which are adapted to be turned down-when not in use, but which when employed carry short cross studs 23 at the ends thereof which studs are disposed upon the outer sides of the sheets 1, the flanges 2 of the sheets being slotted as at 2st to permit the passage of the links 22 therethrough and receive the studs .23 as shown in Fig. l.

The numerals 2525 indicate pull or push rods extending longitudinally of the main shaft, said rods being fastened as at 26 to the hub 7 at'the left hand side of the shaft, the said rods then extending through bores or openings 27 in the adjacent loose hub 1a and are secured at their opposite ends to the loose hub 14: at the right hand side of the shaft, as shown at 27. Similarly the pull or push rods 28 are coupled or fastened to the hub 7 at the right hand side of the main shaft, passed through bores 29 in the adjacent loose hub 14: and are rigidly secured-or connected to the left hand loose hub 14, as at 30.

From the description thus far given and by reference to the drawings, it will besecn that the inner casings is primarily composed of a series of sections of fiat sheets with downturned angular flanges or edges. \Vhen the sheets are to be assembled in the form of a cylindrical core, the ends of the links 2:2 carrying the studs are placed in position, heretofore described, with each cross stud overlying the adjacent angular edges of the sections. The handle 6 is then turned to pull the ends of the sheets toward each other. thereby bending or curving the sheets, until ,a cylinder is formed, with the contiguous angular flanges in face-to-face contact, these flanges forming strengthening 1ribs running longitudinally on the inside of the cylinder. By reference to the drawings, it willrbe, seen that one of the sections of the inner core forms what 1 term the releasing section normally in the form.

which is arranged at the top of the core and is constructed and operated as follows: The releasing section comprises two sheet members 313l having at their outer edges the dounturned angular flanges 32, similar to the flanges 2, while at their adjacent edges, the sheets 31 are formed with longitudinally extending hollow webs 33 formed by bending the ends of the sheets,- said webs being inclined downwardly as at 34:, thence horizontally as at 35, thence upwardly as at 36 and terminating in the horizontal portion 37, where said web is secured to its sheet by the bolts or rivets 38. Each horizontal web is provided with a wedge-shaped body 39in the form of a wooden block which strengthens and reinforces the same. Formed in this central web of the releasing section are the oppositely expanding curved slots 10-4O in each of which rise a connecting bolt 41, connecting the links 42, said links being in turn pivotally connected as at to the short links 44: which in turn are pivoted as at -15 to the long levers as which are operable from the main shaft 3,

the structure of levers just described forming a .double lazy tong arrangement. Be-

tween the links 42 is supported a block d7 having a bore 48 therein for the passage of the threaded rod or pull bolt 19, the latter being actuated by a crank handle 50. When the pull bolt or rod a9 is turned until the bolts 41 are drawn down, the edges of the wedge-shaped sheets are released so that one flanged side may pass the adjacent side whereby the sheets may be removed from the studs to permit the form to be contract ed and all of the sheets removed.

The outer shell or casing B of the mold is also formed of a series of metallic plates or sections 51 having the outwardly extending side flanges 52. The outer casing is adapted to be built up around the inner casing, sheet by sheet, as the work of filling and tamping in the concrete between the two shells progresses.

The numerals 53 designate spacer bars each having a lower hooked end portion 5% designed to be connected to one ofthe studs 23 carried by the short link 22, said spacer bars being further provided with a series of vertically arranged apertures 55 by means of which the distance between the two shells may be adjusted. The spacer bars extend inner core is first assembled, as is shown in between the two shells, and are outer shell are then hooked to the studs at. the ends of the links connected with the long [levers and thesections of the inner core are pulled together by revolving the crank ihan- I dle 6-.so that thesh eets ofthe inner core are bowed or drawn into circular or cylindrical formr 'The building of the concrete struc ti'ilfe then begins from the bottom, the sheets of the outer core being hooked or connected to the studs through the medium of the tie --=.;2-bar, as the work progresses, the tie bars passing between the adjacent edgesof'the f outer sheets, the concrete then being tamped in the space formed by the built-up sections. "of the outer shell, and the inner -core, th e outer sheets being forced into .circular form by thetamping action. Thus any sheet is I forced to all the direct 'curvesof culvertsor is then continued, the outer-sheets being sewers of dilferent diameters. The "process gadded. as the work progresses, until thecomr over the releasing sheets. sired to remove the former, the releaser.

' fslots and thereby permitting the sheets to pass each other edge-to-edge. The core. may ent to form a cylinderwhen the levers are' then' lbe contracted f, fid

lete culvert is formed, said culvert or sewer eing finished at the top thereof directly When it is de-' sheets are loosened by'swinging the locking bolts carried by the links out of the curved removed, and the outside casing taken oif sheet-by-sheet. In some instances, it may be necessary in form'- ing culverts, forinstance, sixteen to twenty foot long or longer to use two or more 1 forms, and: in this case the forms are set end .to end, and overlap so that they form praction, herein'setv forth, as modification and tically one mold or former.

It will be noted that I have provided an exceedingly simple, strong and positive former or mold, whereby the sewer, culvert for conduit may "be built up, and, furthermore, it will be seen that the-:dei'ice may be easily and readily assembled in use and dismantled when-desired. v While I have herein shown and described one particular embodiment ofmy invention,

I wish it to be understood that I. do not limit myself to all the precise details 0t construcvariation may be made without departing.

from the spirit of the invention or exceeding the scope of the appended claims.

Haying thus described -the invention, I

"claim:. j

l. A former comprising a series of -flat sheets having flanged edges, means for con- ;fiflfligecting the adj acentedges of the sheets, and "i ineans for bending or bowing sald sheets flanges drawm.

into circular form with the together to form trusses.

112. A former comprising a plurality I s-metallic sheets, means connecting said, sheets release section cooperat ng with the otherf180' at adjacent edges, and means for pulling upon said connections to draw 'thefsheets into I cylindrical form.

- 3. A former comprising a plurality of flat sheets having angular flanges, means extendmg between the flangesv and forming part ,of mechanism for drawing the sheets together,- and members carried -by, said t means'for engaging with the flanged edges of the sheets tohow the latterin the operation of said means.

at. A' former comprising flat sheets having flanges at the side edges thereof, a power shaft, and means connected" to'the power shaft, and v to the sheets designed when said shaft is actuated to pull the edges of the sheets inward, thus bowing a plurality of or bending said sheets tofo'rm a cylindrical shell. i

5;,A former comprising. a plurality of at .85 sheets assembled edge' to edge, a power shaft,'1eve rs radiating from said shaft, and

connections-between the levers and the sheets I whereby the latter are bent into the form of acylin'de'r when the power shaft is actuate'd'to pul-lupon said levers. 6. -A former comprising a plurality of flat sl1 eets,7a power shaft, hubs upon said and connections between said levers and the ends of the sheets whereby said sheets are having connections with said sheets power levers connected to said links, and means for actuating the levers.

'powershaft, levers connected to said hubs f 8. A former comprising a plurality of flat sheets having inwardly turned flanges at'the edges thereof, a power shaft, hubs mounted upon said power shaft, lazy tong levers carried by the hubs, and connections between said levers and. the edges of the sheets whereby the latter may be bent or bowed, when the levers are contracted, to form. a cylindrical shell.

A former comprising a core composed of a series of flat sheet sections havinginturned flanges-an outer casing surrounding said core, and also formed of a series of flange sheets, mechanism for bending the sheets of the core to form a cylinder, the

outer casing being bent to the form ofthe core by the material r-tamped between the core and casing, and tie rods extending from I the. bending mechanisnr to the outer casingn' l0pAgjorme'r comprising a plurality offlat sections. forming'a portion of a core, a

sections formed of 'tiio sheets having flanges at the edges thereof, the adjacent flanges of said release sheets being formed to pass each other, an operating lever, a power shaft for said lereigashort lever connected to the operating lever, a link pivoted to said short lever, a bolt carried by said link and working in segmental slots formed in the adjacent flanges of the sheetsthe construction and arrangement being such that said bolt may be witl'ldrawn from the slots to permit the removal of the release sheets and the contraction of the core.

I 11. A former comprising a core formed of a plurality of flat sheets and a release section formed of two flat sheets having the abutting edges formed to pass each other in overlapping engagement, mechanism for bending all of saidsheets individually to form a cylindrical corefand means holding of a plurality of flat sheets and a release section formed of two fiat sheets having the abutting edges formed to pass each other in overlapping engagement, mechanism for bending all of said sheets individually to form a cylindrical core, means holding the sheets of said release section normally against rel'atiie movement, and means for releasing 'saidlast-named means.

In testimony wh'ereofI affix my signature in presence of two Witnesses.

i MARVIN HQ MOONEY.

\Vitnesses: r

V. M. Mon-121s, H. R. Monnrs. 

